Originally posted by TGP37
View Post
I found the pistons info thread to confirm if forged slugs are in fact taller than cast and yes, it seems they are. Forged have 1.598 CD and Cast have 1.578 CD vs 1.442 CD for 3.1 (Iron Head).
Now my question is, should I subtract the Compression Distance between the 3.1 and 2.8 forged pistons to find out how much should they be milled?
Also, will the slash cut crankcase evacuation system be enough to help with rings break-in on whichever route I decide to go? Has anyone measured the amount of vacuum pulled with this system?
Comment